Value of 1975 Indonesian Ruphias today

Rp100 in 1975

Rp5,698.28 in 2018

The inflation rate in Indonesia between 1975 and today has been 5,598.28%, which translates into a total increase of Rp5,598.28. This means that 100 ruphias in 1975 are equivalent to 5,698.28 ruphias in 2018. In other words, the purchasing power of Rp100 in 1975 equals Rp5,698.28 today. The average annual inflation rate has been 9.62%.

Inflation timeline in Indonesia (1975-2018)

The following chart ilustrates the equivalence of Rp100 throughout the years due to inflation and CPI changes. All values are equivalent in terms of purchashing power, which means that for each year the same goods or services could be bought with the indicated amount of money.

All calculations are performed in the local currency (IDR) and using 6 decimal digits. Results show only up to 2 decimal digits to favour readability. Inflation data is provided by governments and international institutions on a monthly basis. Today's values were obtained by estimating figures from recent trends.

The following table contains relevant indicators:

Indicator Value
Total Inflation (1975-2018) 5,474.26%
Total Inflation* 5,598.28%
Annual inflation avg. (1975-2018) 9.8%
Annual inflation avg.* 9.62%
CPI 1975 1.96
CPI 2018 109.02
CPI today* 111.44
Rp1 in 1975 Rp55.74 in 2018

* Values extrapolated from the last official data to obtain today's values.

How to calculate today's value of money after inflation?

There are several ways to calculate the time value of money. Depending on the data available, results can be obtained by using the compound interest formula or the Consumer Price Index (CPI) formula.

Using the compound interest formula

Given that money changes in time as a result of an inflation rate that acts as a compound interest, the following formula can be used: FV = PV (1 + i)n, where:

  • FV: Future Value
  • PV: Present Value
  • i: Interest rate (inflation)
  • n: Number of times the interest is compounded (i.e. # of years)

In this case, the future value represents the final amount obtained after applying the inflation rate to our initial value. In other words, it indicates how much are Rp100 worth today. There are 43 years between 1975 and 2018 and the average inflation rate has been 9.6234%. Therefore, we can resolve the formula like this:

FV = PV (1 + i)n = Rp100 * (1 + 0.1)43 = Rp5,574.26

Using the CPI formula

When the CPI for both start and end years is known, the following formula can be used:

Final value = Initial value *
CPI final/CPI initial

In this case, the CPI in 1975 was 1.96 and the CPI today is 111.44. Therefore,

Final value = Initial value *
CPI final/CPI initial
= Rp100 *
109.02/1.96
= Rp5,574.26

Indonesia inflation - Conversion table

Initial Value Equivalent value
Rp1 ruphia in 1975 Rp56.98 ruphias today
Rp5 ruphias in 1975 Rp284.91 ruphias today
Rp10 ruphias in 1975 Rp569.83 ruphias today
Rp50 ruphias in 1975 Rp2,849.14 ruphias today
Rp100 ruphias in 1975 Rp5,698.28 ruphias today
Rp500 ruphias in 1975 Rp28,491.41 ruphias today
Rp1,000 ruphias in 1975 Rp56,982.82 ruphias today
Rp5,000 ruphias in 1975 Rp284,914.09 ruphias today
Rp10,000 ruphias in 1975 Rp569,828.18 ruphias today
Rp50,000 ruphias in 1975 Rp2,849,140.89 ruphias today
Rp100,000 ruphias in 1975 Rp5,698,281.79 ruphias today
Rp500,000 ruphias in 1975 Rp28,491,408.95 ruphias today
Rp1,000,000 ruphias in 1975 Rp56,982,817.89 ruphias today

Value of Ruphia in time (by year)

Period Value
1975 100
1976 119.49
1977 136.42
1978 152.72
1979 162.94
1980 196.49
1981 230.03
1982 246.96
1983 271.57
1984 304.15
1985 331.63
1986 346.33
1987 377.96
1988 413.1
1989 436.1
1990 462.62
1991 508.63
1992 559.42
1993 587.54
1994 647.28
1995 709.9
1996 773.48
1997 820.13
1998 904.79
1999 1,607.03
2000 1,638.02
2001 1,791.05
2002 2,015.66
2003 2,215.66
2004 2,330.03
2005 2,480.83
2006 2,904.47
2007 3,096.17
2008 3,300
2009 3,637.7
2010 3,738.98
2011 3,999.04
2012 4,150.48
2013 4,328.76
2014 4,663.05
2015 5,052.84
2016 5,222.26
2017 5,380.22
2018 5,574.26
Today 5,698.28